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Note 13 - Stock-based Compensation and Purchase Plans (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Apr. 01, 2017	Jul. 01, 2005	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Continuing Operations			$ 11,168	$ 8,368	$ 7,026
Deferred Tax Expense from Stock Options Exercised			$ 2,700	1,800	1,900
Common Stock, Capital Shares Reserved for Future Issuance (in shares)			508,968
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total			$ 3,600
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 2 months 12 days
Stock Reserved for Employee Stock Purchase Plan (in shares)			48,268
Executive Compensation Plan [Member]
Share-based Compensation Continuing Operations			$ 200	$ 400	$ 300
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total			$ 1,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)				1 year 4 months 24 days
Percent of Participants Annual Incentive Compensation Participants May Elect to Defer Maximum				50.00%
Expiration of Restrictions on Units (Year)				3 years
Executive Compensation Plan [Member] | Minimum [Member]
Shares of Common Stock Issued Determined by Adjustment of Target Range Percent			50.00%
Executive Compensation Plan [Member] | Maximum [Member]
Shares of Common Stock Issued Determined by Adjustment of Target Range Percent			200.00%
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date	15.00%	5.00%
Percent of Fair Market Value at Which Employees May Purchase Shares of Stock	85.00%
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)			6,707	7,509	11,132
Stock Issued During Period Average Price (in dollars per share)			$ 83.22	$ 66.98	$ 52.57
Restricted Stock [Member]
Share-based Compensation Continuing Operations			$ 5,000	$ 5,300	$ 4,200
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)			$ 104.37	$ 59.57	$ 71.38
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value			$ 6,800	$ 2,800	$ 2,300
Restricted Stock [Member] | Executive Compensation Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)			$ 108.92	$ 43.16	$ 74.37
Performance Stock Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)			$ 102.61
Performance Stock Units [Member] | Executive Compensation Plan [Member]
Share-based Compensation Continuing Operations			$ 6,000	$ 2,600	$ 2,900
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)				$ 58.81	$ 70.37
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value			400	$ 700	$ 800
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total			$ 5,600
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year

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The amount of time after which the restriction on the units will expire.

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The maximum percentage of employees' annual incentive compensation in restricted stock, which is purchased at a discount to the market, that they may elect to defer.

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The percentage by which the number of common stock issued will be adjusted upward or downward at the end of the performance period.

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Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Discount rate from fair value on purchase date that participants pay for shares.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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